Http.client.newService("localhost:8080") constructs a new com.twitter.finagle.Service instance
connected to localhost TCP port 8080. We then issue a HTTP/1.1 GET request to URI "/". The service
returns a com.twitter.util.Future representing the result of the operation. We listen to this
future, printing an appropriate message when the response arrives.

The Finagle homepage contains useful documentation and
resources for using Finagle.